Coke quenching car with tiltable bottom



Feb. 18, 1941. w. SALDEN 2,232,141

COKE QtIENCHING CAR WITH TILTABLE BOTTOM Filed Feb. 13, 1939 2 Sheets-Sheet 1 Ill] "Ml II||||||||| IE- I WW Feb. 18, 1941. w. SALDEN COKE QUENCHING CAR WITH TIL'I'ABLE BOTTOM 2 Sheets-Sheet 2 Filed Feb. 13, 1939 M fxiwz CPI Patented Feb. 18, 1941 UNITED STATES PATENT OFFICE COKE QUENCHING C'AR WITH TILTABLE BOTTOM' Application February 1 3, 1939, Serial No. 256,079

In Germany February 15, 1938 2 Claims.

The invention relates to coke quenching cars with tiltable coke container arranged so as to swing round a horizontal axis on an undercarriage.

The purpose of arranging the body of a coke quenching car tiltably is to distribute the coke which is pushed out of the oven chamber in a uniform manner over the bottom of the quenching car container, thus preventing an accumulation of the coke on the lower part of the bottom as it often happens in the use of the customary quenching cars with a sloping bottom fixed rigidly at the undercarriage. On charging the quenching car with the coke formed in the coking chamber the tiltable bottom of the quenching car is moved in such a position that the coke cake will spread uniformly in a thin layer on the bottom. In this charging position the bottom of the coke container is slightly inclined only, the inclination of the bottom being such that the charge cannot slide off the container even if the one side wall of the container is removed. For the purpose of discharging the coke quenching car the container is then tilted until the charge will slide off.

With the known quenching cars with tiltable bottoms, the side wall which closes the container at the lower part of the bottom is arranged slewably in bearings provided at the upper side of the container and a special actuating device is provided for opening or closing said movable side wall.

In order to avoid an independent actuating device ithas been proposed to connect the said side wall with the tilting arrangement of the car body in such a manner that on tilting the coke container the movable side wall is opened simultaneously so that the coke charge may freely slide off the container.

In any case themovable side wall of the coke container shows several disadvantages. On the one hand it is necessary to provide suitable bearings for supporting the side wall on the undercarriage and further bearings have to be arranged for the means which will transmit the movement of the body to the movable side wall. Supervision and repair of such bearings cause many troubles.

Furthermore on account of the great changes in temperature, which are eifected by the hot coke and the cold quenching water, the movable wall and bearings tend to deform to such an extent that often the movement of the side wall is rendered impossible.

It has been further proposed with regard to coke quenching cars with a container connected rigidly to the undercarriage to arrange the lower part of the inclined container bottom so as to swing round a horizontal axis. The movable part of the container bottom is lowered in order to discharge the ooke. This arrangement, however, cannot prevent the coke from accumulating on one side of the bottom since the main part of the container bottom has to be arranged with such an inclination that the coke may slide of! after the movable bottom part has been opened.

The quenching car design according to my invention obviates safely all the above mentioned deficiencies.

Now, my present invention consists in providing the coke quenching car with a side wall fixed rigidly to the undercarriage, and with a tiltable inclined bottom which in closed position butts from below against the lower edge of the side wall in such a manner that on tilting the inclined container bottom a large opening is formed between the lower part of the inclined tiltable bottom and the fixed side wall, said opening being of such width that the coke may freely slide through said opening onto the discharging bench.

The invention relates further to means for moving the bottom of the quenching car container.

The tilting movement is effected in the known quenching cars by means of lifting devices preferably of hydraulic or pneumatic type which are arranged laterally of the undercarriage or bogie. The cylinder of the lifting devices is slewably connected with the bogie and the piston rod is connected with the bottom of the container. Distributed over the length of the quenching car, several lifting devices are arranged at various points in order to avoid a deflection. But through the arrangement of the lifting devices between the bogie and the container bottom the overall height of the quenching car is unfavourably increased.

My present invention has the further object to overcome this difficulty and for this purpose I provide for below the inclined tiltable bottom of the coke container a horizontal shaft with several cranks arranged over the whole length of the shaft and being connected with the tiltable bottom in such a manner that on turning the said crank shaft the bottom is tilted. Preferably the cranks of the shaft and the means connecting said cranks with the tiltable bottom are designed in such a manner that the cranks are practically at their dead point when the tiltable bottom is in the charging position.

A still further feature of my invention consists in that the movement of the tiltable bottom is effected by means of a hydraulic or pneumatic driving mechanism (piston engine) which is arranged below the tiltable bottom and with its longitudinal axis substantially parallel to the bottom when in charging position.

Finally I provide between said hydraulic or pneumatic driving mechanism and the crank shaft a rack which engages a pinion fixed to the crank shaft in such a manner that on actuating the piston engine the crank shaft is turned in the desired way.

A preferred embodiment of the invention is shown on the drawings.

Fig. 1 shows a vertical cross section through the quenching car according to the invention.

Fig. 2 is a longitudinal view of the quenching car seen in direction of the arrow towards the lifting device.

Fig. 3 is an enlarged view in elevation of the connection between member 23 and member 24 of the lifting device.

The undercarriage or bogie I of the quenching car is arranged on wheels 2 and travels before the oven battery 3 on suitable rails.

On the bogie l the container 4 is arranged for receiving the red-hot coke. This container is formed by the bottom 5 normally inclined towards the long side wall 9 and the front walls H. The container bottom 5 is tiltable in bearings 6 arranged in the middle of the bogie round the horizontal axis 1; The side of the container formed by the long wall 9 is rigidly connected with the undercarriage by means of the struts ID, the other sides are formed by the front walls I I which are connected with the bottom 5.

The tilting movement of the container bottom 5 is effected by a piston engine l2 which is preferably operated with compressed air. The engine is arranged in the middle of the undercarriage I under the container bottom 5.

The piston rod [3 of the engine I2 is connected at its end with a rack M which engages a pinion IS. The pinion I5 is rigidly connected with a shaft I6 which is supported by bearings I! on the bogie l. The bearings I8 arranged beside the pinion 15 have flanges I9 between which the rack [4 lies and to which is connected 2. guide roller 20 which holds the rack I4 in engagement with the pinion I5.

At various points over the whole length, preferably near the strengthening ribs, bearings 22 are mounted on the lower side of the tiltable bottom. In these bearings driving rods 23 are supported which are connected at their other ends each with a crank 24, fixed to the shaft 16. On actuating the piston engine l2, the piston rod I3 will be moved to the right (on the drawing) and consequently the pinion l5 and crank shaft [6 is turned in the clockwise direction. Simultaneously the rods 23 and the inclined tiltable bottom Will be lifted by means of the cranks 24 which are fixed to the shaft IB until the cranks reach their upper dead point and the con tainer bottom is in its discharging position.

When the coke is pushed out of the oven chamber, it is guided by the coke guide car 25 into the quenching car container 4. The tiltable bottom 5 is now in its inclined charging position which corresponds to the position shown in full lines in Fig. 1 of the drawings. Therefore the coke pushed out of the coking chamber distributes in a thin layer of uniform depth over the entire bottom of the quenching car container when the quenching car is made to travel, as usual in practice, slowly and uniformly past the coke guide car as the coke falls therefrom during the pushing out of the coke cake from the oven chambers. In its charging position the quenching car bottom butts with its lower edge against the stationary side wall 9 of the container so that the container is closed. The inclined bottom prevents the coke from heaping up more along one side than the other of the car, as occurs with horizontal bottoms, and bottoms inclined to an extent at which the coke would discharge by gravity without tilting the bottom.

For discharging the container the bottom 5 is turned round the axis 1 in a clockwise manner by means of the action of the tilting engine. Thereby an opening 26 is formed between the stationarywall 9 and the bottom 5 through which the coke may discharge on the discharging bench 21. This discharging position of the container bottom is shown in Fig. l on the drawings in dot and dash lines.

In front of the supporting bodies 28 distributing plates 29 are provided which guide the coke round the supports. The container bottom 5 has recesses which correspond to these distributing bodies.

I have now above described my present invention on the lines of a preferred embodiment thereof but my invention is not limited in all its aspects to the mode of carrying it out as described and shown, since the invention may be variously embodied within the scope of the following claims.

I claim:

1.. Coke quenching car including a container bottom arranged for tilting action around a horizontal axis on the undercarriage said axis spaced laterally from a side wall fixed rigidly to the undercarriage, said side wall and tiltable bottom being formed and arranged in such manner that in charging position the bottom in its final closed position abuts against the lower edge of the fixed side wall, characterized by said tiltable bottom being normally inclined at an angle slightly less than that at which the coke would slide towards the fixed side wall in closed position for charging, the inclination of the bottom being such that the charge would not slide off the container even if the fixed side wall of the container were removed, and further characterized by the bottom being adapted to tilt away from said lower edge for dumping.

2. Coke quenching car according to claim 1 and in which the said horizontal axis for tilting is disposed at a point below the middle axis of the container and in which a shaft is arranged on the undercarriage parallel to the said horizontal axis below the container bottom on the side of the tilting axis opposite said side wall, said shaft being connected with a driving means and being fitted with cranks connected to and adapted to tilt the tiltable container bottom, all underneath the bottom on the same side as the shaft.

WILHELM SALDEN. 

